Green’s Dictionary of Slang

tartarian n.

[ext. of tartar n. (1)]

a thief; also as adj., thieving.

[UK]Gesta Grayorum in J. Nichols Progresses and Processions of Queen Elizabeth (1823) III 309: An Esquire of the Prince’s Company, attended by a Tartarian Page.
[UK]Merry Devil of Edmonton I i: There’s not a Tartarian Nor a Carrier, shall breathe vpon your geldings.
[UK]J. Taylor Laugh and Be Fat 43: And such are you you damn’d Tartarian whelps.
[UK]The Wandering Jew 63: If any theeving Tartarian shall break in upon you, I will with both hands nimbly lend a cast of my office to him.